This is a courier’s bag, designed for getting wet, thrown about, overstuffed and dropped by the front door at the end of the day. Featuring waterproof fabric and a water-resistant construction and zippers, it protects its contents from rain, rough handling and miles of abuse. A roomy main compartment holds books, papers, running shoes and a lunch. Inside, a padded sleeve accommodates most 17-inch laptops and two mesh pockets come equipped with a key keeper and an organization panel to hold your pens, zip drives and a phone. The flap has an outer pocket that seals with a water-shedding zipper, two daisy chains to hold your bike lock, and webbing loop to attach a bike light. Designed for a vertical fit while you’re riding, the shoulder strap switches between right- or left-carry and features a single-handed, quick adjustment for a precise fit. A padded back panel softens the loads. With a topside carrying handle, reflective material for visibility at night and lash straps to hold a yoga pad. Made from 14.7-oz 1,200-denier polyester (50% solution-dyed) with a TPU-film laminate and a DWR (durable water repellent) finish.